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VACCINATION WITH BABESIA ARGENTINA IN 5 BEEF HERDS IN SOUTH‐EASTERN QUEENSLAND
Author(s) -
Emmerson> F. R.,
Knott S. G.,
Callow L. L.
Publication year - 1976
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1976.tb05388.x
Subject(s) - vaccination , babesia , herd , veterinary medicine , babesiosis , virology , biology , geography , medicine
Observations on the use of a vaccine containing Babesia argentina in 5 partly susceptible beef herds in south-eastern Queensland were made on 1,029 female breeding cattle over a period of 4 years. Groups averaging about 20 heifers were given 0, 1, 2 or 3 vaccinations. Incidence derived from groups experiencing clinical attacks were 17.9% for unvaccinated cattle and 1.2% for vaccinates. Increasing the number of vaccinations did not appear to increase protection. The one clinical manifestation of infection with B. bigemina was associated with a concurrent reaction to vaccination with Anaplasma centrale. There were no cases of haemolytic anaemia in new-born calves. No severe reactions followed primary vaccination, but 2 revaccinated animals became sick.